NXP Semiconductors S9S12VR48AF0MLCR
- Part No.:
- S9S12VR48AF0MLCR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
S9S12VR48AF0MLCR.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S9S12VR48AF0MLCR from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12-based automotive microcontroller with integrated LIN physical layer transceiver, high-side and low-side drivers, 48 KB Flash, 4 KB RAM, and on-chip voltage regulator. It operates at up to 25 MHz bus speed, supports 5 V operation, and targets body control modules requiring robust I/O, power switching, and LIN communication.
For engineers reviewing the S9S12VR48AF0MLCR datasheet, S9S12VR48AF0MLCR pinout, S9S12VR48AF0MLCR application, or S9S12VR48AF0MLCR equivalent, key selection criteria include LINPHY compliance (SAE J2602), integrated HSDRV/LSDRV drive capability (1.0 A sink/source), BATS supply monitoring, and 48-pin LQFP packaging for space-constrained automotive PCBs.
Technical Context
The S9S12VR48AF0MLCR implements the HCS12 CPU12 core with 16-bit data path and 24-bit addressing, executing instructions at up to 25 MHz bus clock derived from internal PLL or external crystal. Its CPMU unit manages multiple low-power modes including Stop, Wait, and Pseudo-Stop, with wake-up via LIN bus activity, GPIO, or timer events.
It integrates dedicated hardware modules: LINPHY v2 compliant with ISO 17987-4 and SAE J2602, ADC12B6C with 10-channel 12-bit SAR conversion, TIM16B4C 16-bit timer with input capture/output compare, and S12PWM8B8C 8-channel PWM with dead-time insertion - all synchronized to the same clock domain and accessible via memory-mapped registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 24-bit address bus; enables deterministic real-time control in automotive body electronics. |
| Flash Memory | 48 KB on-chip Flash with ECC and IFR; supports in-circuit programming and secure boot via BDM interface. |
| RAM | 4 KB on-chip SRAM; sufficient for LIN protocol stack, PWM buffering, and sensor data processing without external memory. |
| Bus Clock Speed | Up to 25 MHz; delivers 12.5 MIPS performance suitable for multi-sensor polling and actuator sequencing. |
| LINPHY Compliance | Fully compliant with SAE J2602 and ISO 17987-4; eliminates need for external LIN transceiver in node designs. |
| HSDRV Output | Integrated high-side driver with 1.0 A continuous sink current and thermal shutdown; drives lamps, solenoids, and relays directly. |
| Supply Monitoring | BATS module measures VBAT with ±1% accuracy over -40°C to 125°C; enables battery health diagnostics and brown-out recovery. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, rated for automotive temperature range (-40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core power/ground | Supplies 5 V logic core; requires local 100 nF decoupling per pair to suppress switching noise. |
| VREGIN, VREGOUT | On-chip regulator input/output | Accepts 5–27 V input; regulates stable 5 V for internal peripherals and external loads up to 100 mA. |
| LINRX, LINTX | LIN bus interface | Differential LIN PHY pins; connect directly to LIN bus via single 1 kΩ pull-up resistor to VBAT. |
| HSD1–HSD4 | High-side driver outputs | Four independent 1.0 A drivers with fault reporting; each supports PWM dimming of LED clusters or incandescent lamps. |
| LSD1–LSD4 | Low-side driver outputs | Four 1.0 A open-drain drivers with overcurrent protection; used for grounding motors, valves, or sensors. |
| AD0–AD9 | Analog inputs | 10-channel 12-bit ADC inputs with internal reference; support direct connection to thermistors, potentiometers, and battery sense dividers. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LINPHY v2 | Eliminates external transceiver, reduces BOM cost by $0.35–$0.60 and saves 3–4 mm² PCB area per node. |
| On-chip voltage regulator (VREG) | Accepts wide 5–27 V input range; powers MCU core and external peripherals without discrete LDO. |
| HSDRV + LSDRV co-integration | Enables full H-bridge motor control or dual-switch load management using only one IC and no external FETs. |
| BATS supply sensing | Provides factory-calibrated VBAT measurement with <±1% error; enables accurate low-battery warning and sleep-mode entry thresholds. |
| Background Debug Module (BDM) | Single-wire debug interface compatible with standard Freescale/NXP BDM tools; supports flash programming and real-time register inspection in vehicle. |
Applications
| Body Control Module (BCM) | Smart Junction Box (SJB) |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, interior lighting, and mirror adjustment in entry-level vehicles. IC Role / Device Role / Timing Role: Primary controller executing LIN slave firmware, managing PWM-driven LED lighting, and monitoring switch inputs via port pins. Use Value: Reduces component count by integrating LINPHY, HSDRV, LSDRV, and BATS-eliminating 4 discrete ICs and associated passives. | Use Scenario: Power distribution and load monitoring in modern junction boxes with diagnostic feedback and short-circuit protection. IC Role / Device Role / Timing Role: System manager coordinating relay control, fuse status reporting, and LIN-based communication with gateway ECU. Use Value: Enables real-time load current estimation via HSDRV/LSDRV fault flags and BATS voltage tracking-supporting predictive maintenance alerts. |
| Seat Control Unit | Roof Module (Sunroof/Blind) |
Use Scenario: Motorized seat position adjustment with memory function and obstruction detection. IC Role / Device Role / Timing Role: Dual H-bridge controller using paired HSDRV/LSDRV channels, with ADC monitoring of motor current and potentiometer feedback. Use Value: Achieves precise position control via 12-bit ADC resolution and 25 MHz bus timing-enabling sub-1° angular accuracy in seat recline. | Use Scenario: Sunroof or roller blind actuation with anti-pinch safety logic and smooth ramp-up/ramp-down motion profiles. IC Role / Device Role / Timing Role: LIN slave node executing motion control algorithms, using TIM16B4C for encoder counting and PWM8B8C for motor drive modulation. Use Value: On-chip PWM dead-time insertion prevents shoot-through during direction reversal-critical for brushless DC motor commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12VR64AF0MLCR | 64 KB Flash, same package and peripheral set; higher code capacity for complex LIN gateway stacks. | Supports dual-LIN master/slave roles and larger diagnostic routines (UDS ISO 14229). | Select when >48 KB Flash required for bootloader + application + calibration data storage. |
| SPC560B50L5 | 32-bit Power Architecture core, 512 KB Flash, CAN FD, no integrated LINPHY or HSDRV. | Targets mid-tier powertrain/body gateways requiring CAN FD and ASIL-B compliance-not drop-in replacement. | Choose for next-generation platforms needing CAN FD connectivity and higher computational throughput; requires redesign. |
Compared with MC9S12VR64AF0MLCR, S9S12VR48AF0MLCR offers identical peripheral integration but 16 KB less Flash-sufficient for basic LIN slaves. Versus SPC560B50L5, it provides lower-cost, pin-compatible LIN node functionality without CAN or safety certification overhead.
Availability
S9S12VR48AF0MLCR is available at Aetrix Electronics and suitable for body control modules, smart junction boxes, and seat control units requiring stable component supply across automotive production lifecycles.
Supply support for S9S12VR48AF0MLCR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on automotive, industrial, and IoT applications, delivering secure, energy-efficient, and scalable silicon solutions.
The S9S12VR family was designed specifically for cost-sensitive automotive body electronics nodes requiring integrated LIN communication, power switching, and supply monitoring-reducing system complexity and bill-of-materials cost.
FAQ
What is the maximum operating temperature rating for the S9S12VR48AF0MLCR?
The S9S12VR48AF0MLCR is qualified for the automotive temperature range of −40°C to +125°C ambient, with all specifications-including Flash endurance, ADC accuracy, and HSDRV current drive-guaranteed across this range per AEC-Q100 Grade 2 requirements. This ensures reliable operation in under-hood and cabin-mounted applications where thermal stress is critical.
Does the S9S12VR48AF0MLCR include an internal voltage regulator?
Yes, the S9S12VR48AF0MLCR includes an integrated on-chip voltage regulator (VREG) that accepts 5–27 V input on VREGIN and delivers a regulated 5 V output on VREGOUT. It supports up to 100 mA total load current and features overvoltage, undervoltage, and thermal shutdown protection-enabling direct connection to vehicle battery without external LDO.
Can the S9S12VR48AF0MLCR operate as a LIN master node?
No, the S9S12VR48AF0MLCR implements only LINPHY v2 in slave mode per SAE J2602 Annex A. It lacks the LIN master timing generator and automatic header generation required for master operation. The device must be configured as a LIN slave responding to headers broadcast by a separate master ECU or gateway.
What debugging interface does the S9S12VR48AF0MLCR support?
The S9S12VR48AF0MLCR supports the Background Debug Module (BDM) interface using a single-wire BKGD pin. It is fully compatible with standard NXP/Freescale BDM debuggers (e.g., USB-ML-12, Cyclone Pro) for flash programming, breakpoint setting, and real-time register/memory inspection during development and field diagnostics.
Is the S9S12VR48AF0MLCR pin-compatible with other MC9S12VR family members?
Yes, the S9S12VR48AF0MLCR is pin-compatible with other 48-pin LQFP variants in the MC9S12VR family-including S9S12VR32AF0MLCR and S9S12VR64AF0MLCR-sharing identical pin assignments for power, ground, LINPHY, HSDRV, LSDRV, ADC, and port signals. This allows hardware reuse across Flash-size variants during platform scaling.
S9S12VR48AF0MLCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-LQFP
- Series:
- S12 MagniV
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 12V1
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- IrDA, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 512 x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.13V ~ 5.5V
- Data Converters:
- A/D 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12VR48AF0MLCR FAQ
1.How can I place an order for S9S12VR48AF0MLCR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12VR48AF0MLCR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S9S12VR48AF0MLCR reliable?
The price and inventory of S9S12VR48AF0MLCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12VR48AF0MLCR is usually 5 days.
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S9S12VR48AF0MLCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12VR48AF0MLCR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S9S12VR48AF0MLCR?
For technical support, including S9S12VR48AF0MLCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12VR48AF0MLCR requirements.
6.How does Aetrix verify that S9S12VR48AF0MLCR is sourced from the original manufacturer or authorized distributors?
All S9S12VR48AF0MLCR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S9S12VR48AF0MLCR meets industry standards.
7.What is the process for return or replacement of S9S12VR48AF0MLCR?
All S9S12VR48AF0MLCR units undergo pre-shipment inspection (PSI). If there is an issue with S9S12VR48AF0MLCR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S9S12VR48AF0MLCR part is unused and in its original packaging.
Return procedure for S9S12VR48AF0MLCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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